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which of the following oxides behaves...

which of the following oxides behaves as conductor or insulator depending upon temperature ?

A

TiO

B

`SiO_(2)`

C

`TiO_(3)`

D

MgO

Text Solution

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The correct Answer is:
C
Certain metal oxides like `VO_(2),VO,VO_(3) and TiO_(3)` show metallic or metallic or insulating property depending upon temperature As, temperature Varius metallic or insulating property varies this is due to vartation in energy gap between conduction band and valence band .
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NCERT EXEMPLAR-SOLID STATE-Solid State
  1. which of the following is not the characteristic of ionic solids?

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  2. Graphite is a good conductor of eletricity due to the presence o...

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  3. which of the following oxides behaves as conductor or insulator ...

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  4. which of the following oxides shows electrical properties like ...

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  5. The lattice site in a pure crystal cannot be occupied by :

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  6. graphite cannot be classifed as ………… .

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  7. Cations are present in the interstitial sites in …………… .

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  8. Schottky defect is observed in crystals when ……………. .

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  9. which of the following is true about the change the charge acq...

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  10. to get a n- type semiconductor from silicon , it should be doped...

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  11. The total of tetrahedral voids in the face centred unit cell is ……...

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  12. which of the following point defects are shoen by AgBr (s) crys...

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  13. In which pair most efficient packing is present?

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  14. Percentage of free space in cubic in a body- centred cubic unit cell ...

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  15. which of the following statemets is not true about the hexagona...

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  16. in which of the following strutures corrding number for cations ...

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  17. What is the coordination number in a square close packed structures in...

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  18. which kind of defects are introduced by doping ?

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  19. silicon doped with electron rich impurity forms ………. .

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  20. which of the following statements is not true ?

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